CN1308516A - A disposable absorbent article having barriers with expandable attachment to an absorbent - Google Patents

A disposable absorbent article having barriers with expandable attachment to an absorbent Download PDF

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Publication number
CN1308516A
CN1308516A CN99808379A CN99808379A CN1308516A CN 1308516 A CN1308516 A CN 1308516A CN 99808379 A CN99808379 A CN 99808379A CN 99808379 A CN99808379 A CN 99808379A CN 1308516 A CN1308516 A CN 1308516A
Authority
CN
China
Prior art keywords
composite members
absorbent article
goods
side sheet
length
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN99808379A
Other languages
Chinese (zh)
Inventor
P·T·范戈姆佩尔
黄永祥
J·A·马丁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kimberly Clark Worldwide Inc
Kimberly Clark Corp
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Kimberly Clark Worldwide Inc
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Filing date
Publication date
Application filed by Kimberly Clark Worldwide Inc filed Critical Kimberly Clark Worldwide Inc
Publication of CN1308516A publication Critical patent/CN1308516A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A61F13/49466Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the waist region
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007Form-fitting, self-adjusting disposable diapers
    • A61F13/49009Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49017Form-fitting, self-adjusting disposable diapers with elastic means the elastic means being located at the crotch region
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A61F13/49406Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
    • A61F13/49413Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A61F13/49406Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
    • A61F13/49413Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier
    • A61F13/4942Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier the barrier not being integral with the top- or back-sheet
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49058Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by the modular concept of constructing the diaper
    • A61F2013/49063Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by the modular concept of constructing the diaper the diaper having decoupled components
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F2013/49068Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline
    • A61F2013/49076Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline as "I"-shaped

Abstract

An integral absorbent article (10) has a longitudinal article length (26) and a lateral article width (24). An absorbent composite (32) has first and second longitudinally opposed end regions (78 and 79), and has laterally opposed side regions (80). The absorbent composite also includes a first longitudinally terminal end edge (82). The absorbent composite (32) includes a substantially liquid-impermeable backsheet layer (30), a substantially liquid permeable topsheet layer (28), and a retention portion (48) which is sandwiched between the backsheet and topsheet layers. The article includes at least one first body panel (52) having a body side surface (54), an outward surface (56), and a panel length (58) which is less than the article length (26). The first body panel (52) also includes a first outboard terminal end edge (60), and a second relatively inboard terminal end edge (62). In desired configurations, the first outboard terminal end edge (60) can be substantially coterminous with a first terminal end edge of the article. An expandable attachment section (90) is joined along at least a portion of each side region (80) of the absorbent composite (32) in the first end region (78) of the absorbent composite.

Description

Has disposable use absorbent article with the deployable barrier layer that is connected of assimilate
Invention field
The present invention relates to clothes product.Specifically, the present invention relates to absorbent article, preferably disposable use absorbent article, it is through assembling with in conjunction with to form an overall structure.
Background of invention
Traditional clothes product, for example disposable diapers and other disposable use absorbent article have the binding agent or the machanical fastener of general use, and this binding agent or securing member are fixed the specified waistband portion of these goods around the wearer.In addition, heteroid waist elastic component, lower limb elastic component, elastic insert and elasticity outer cover have been applied to clothes product, to help formation and to keep goods fit around wearer's body contour.
The outer surface of this disposable use absorbent article can comprise the membrane material of nonwoven material or rough facing.In some constructions, the pattern omphalos has formed in the outer surface of outer cover, so that decorative pattern to be provided.Other disposable use clothes has the outer cover of being made by elastomeric textile.
In the concrete structure of disposable use absorbent article, elastic waist belt turnover sheet in including along the body side surface of goods.Belt, interior turnover chip part can stretch along the part of the transverse width of the waistband portion of goods, and its extending transversely degree is equal to or greater than the extending transversely degree of the outer cover of goods.
In other structure, goods can comprise the absorbent assembly that is connected with the inner surface of bigger belt element.The belt element has elasticity usually and is arranged in an end of absorbent assembly.The belt element stretches the terminal edges of the end that exceeds absorbent assembly, but also extends beyond the horizontal opposed side edges of absorbent assembly.
Traditional clothes product, for example above-mentioned clothes product do not have required fit degree, absorbability, anti-leakage property, low cost and are convenient to manufacturing.As a result, need these performances in conjunction with also further improved more effective clothes always.
Brief summary of the invention
As described in usually, the invention provides a kind of absorbent article with vertical goods length and horizontal goods width.Absorb composite members and have first and second vertical relative ends, and have laterally relative sidepiece.Absorb the end margin that composite members also comprises one first vertical terminal.Absorb composite members comprise one basically the impermeable back sheet of liquid, one basically fluid permeable the top flat layer and be interposed in the part that retains between top flat layer and the back sheet.These goods comprise have a body side surface, the first side sheet of outer surface and leaf length.The first side sheet also comprises the end margin of one first outer lateral terminal and the end margin of one second relative inner terminal.Deployable connecting portion section at least a portion along each sidepiece that absorbs composite members in the first end that absorbs composite members connects.Each deployable connecting portion section outwards stretches, and the side portion of connection that each deployable connecting portion section is configured to absorb the correspondence of composite members is fixed on the outer surface of the first side sheet.
In required structure, the end margin of the first outer lateral terminal of the first side sheet can be basically links to each other with the end margin of first terminal of goods.In another aspect of this invention, back sheet and top flat layer can provide one of at least longitudinal component length less than goods length.In addition, back sheet and top flat layer can have unequal longitudinal length.
By in conjunction with its different aspect, goods of the present invention can provide the goods with improved fit degree, improved absorbability and improved anti-leakage.These goods can also be low-cost and high efficiency make.Particularly, make the deployable connecting portion section that absorbs composite members and side chip bonding allow to absorb during use the increase of composite members volume, and allow the side sheet to keep closely consistent waist and the trunk that centers on wearer's body snugly.The side sheet also better is provided at the wet more effective barrier layer that absorbs between composite members and the wearer's skin.Absorb the elastic leg cuff of composite members and middle the crotch part that deployable section is positioned at diaper, at this, deployable part also allows to absorb the composite members volume to be increased, and meanwhile, does not influence the lower limb cooperation of elastic leg cuff around the wearer basically.
Brief description of the drawings
Below with reference to accompanying drawing and in conjunction with detailed description of the present invention, the present invention will be more readily understood, and its advantage will be clearer, wherein:
The inner side plane figure of the partly cut-away on the side of Fig. 1 canonical representation goods of the present invention;
Figure 1A canonical representation is along the expansion cross sectional representation of the line A-A intercepting of Fig. 1;
Figure 1B canonical representation is along the expansion cross sectional representation of the line B-B intercepting of Fig. 1;
Fig. 1 C canonical representation is along the expansion cross sectional representation of the line C-C intercepting of Fig. 1;
The outside plane graph in the outside of Fig. 2 canonical representation goods of the present invention;
Fig. 2 A canonical representation is along the cross sectional representation of the line A-A intercepting of Fig. 2;
Fig. 2 B canonical representation is along the cross sectional representation of the line B-B intercepting of Fig. 2;
The outside plane graph in the outside of Fig. 3 canonical representation another kind of goods of the present invention, these another kind goods have other expansion back sheet;
Fig. 3 A canonical representation is along the cross sectional representation of the line A-A intercepting of Fig. 3;
Fig. 3 B canonical representation is along the cross sectional representation of the line B-B intercepting of Fig. 3;
Fig. 3 C canonical representation is along the cross sectional representation of the line C-C intercepting of Fig. 3;
Fig. 3 D canonical representation is along the cross sectional representation of the line D-D intercepting of Fig. 3;
The zoomed-in view on the side at the front waist belt angle of Fig. 4 canonical representation goods of the present invention;
Fig. 4 A canonical representation is along the cross sectional representation of the line A-A intercepting of Fig. 4;
Fig. 4 B canonical representation is along the cross sectional representation of the line B-B intercepting of Fig. 4;
The zoomed-in view on the side at the place, back belt angle of Fig. 5 canonical representation goods of the present invention;
Fig. 5 A canonical representation is along the cross sectional representation of the line A-A intercepting of Fig. 5;
Fig. 6 canonical representation is fixed to the sketch map of the absorption composite members on the outside of side sheet, and the deployable connecting portion section that is provided by folding top flat layer and back sheet parts is provided this side sheet;
Fig. 6 A canonical representation is fixed to the cross sectional representation of the absorption composite members on the outside of side sheet, and the deployable connecting portion section that is provided by folding back sheet and extensible top flat layer is provided this side sheet;
Fig. 6 B canonical representation is fixed to the cross sectional representation of the absorption composite members on the outside of side sheet, and the deployable connecting portion section that is provided by another selectively folding back sheet and extensible top flat layer is provided this side sheet;
Fig. 7 canonical representation is fixed to the cross sectional representation of the absorption composite members on the outside of side sheet, and this side sheet has deployable connecting portion section, and this deployable connecting portion section is formed by the extendable members that provides separately that is fixed in the cross side that absorbs composite members;
Fig. 8 canonical representation is fixed to the cross sectional representation of the absorption composite members on the outside of side sheet, and the deployable connecting portion section that is provided by extensible top flat layer and extensible back sheet is provided this side sheet;
Fig. 8 A canonical representation is fixed to the cross sectional representation of the absorption composite members on the outside of side sheet, and the deployable connecting portion section that is provided by extensible top flat layer is provided this side sheet, and this extensible top flat layer is laterally projecting and surpass the terminal edges of back sheet; With
Fig. 8 B canonical representation is fixed to the cross sectional representation of the absorption composite members on the outside of side sheet, and the deployable connecting portion section that is provided by extensible back sheet is provided this side sheet, and this extensible back sheet is laterally projecting and surpass the whole limit of top flat layer.
Detailed description of preferred embodiment
Below at disposable use absorbent article for example disposable diapers different aspect of the present invention and embodiment are described.Yet the present invention also can be used for other goods obviously, for example feminine care products, children training trousers, incontinent person's clothes and analog.Usually, the limited use of disposable use goods plan, and do not plan to wash or clean for re-using.For example, disposable diapers abandons after being made dirty by the wearer.Choose wantonly, disposable diapers can comprise the absorption insert and reusable repeatedly the outer cover of limited use of single use.
Should also be noted that, in this disclosure, term " comprises " and the synonymous term of grammer derivative form means the term of open implication, its expression comprises any feature of mentioning, element, integral body, step or parts, does not comprise or additional one or more further features, element, integral body, step, parts or its combination but do not get rid of.Therefore, this class term and word " have ", and the synonymous term of any grammer derivative form of " comprising " and these words is equal to.
Referring to Fig. 1 to 2C, goods for example by the illustrated monoblock type absorbent articles that provide of the representative expression of diaper 10, have longitudinally vertical goods length 26 of 27 and along horizontal 25 goods width 24.Absorb composite members 32 and have first and second vertical relative ends 78 and 79, and have laterally relative sidepiece 80.Absorb the end margin 82 that composite members also comprises first and second vertical terminals.Absorb composite members 32 and comprise basically the impermeable back sheet 30 of liquid, the top flat layer 28 of fluid permeable basically, and be interposed in and retain part 48 between back sheet and the top flat layer.Goods comprise at least one side sheet, for example the first side sheet 52 of representative expression.The first side sheet has body side surface 54, outer surface 56 and less than the leaf length 58 of goods length 26.The first side sheet 52 also comprises the end margin 60 of one first outer lateral terminal and the end margin 62 of one second relative inner terminal.In required structure, the end margin 60 of the first outer lateral terminal can be basically links to each other with the end margin of first terminal of goods.In the first end 78 that absorbs composite members, deployable connecting portion section 90 connects along at least a portion of each sidepiece 80 that absorbs composite members 32.Each deployable connecting portion section 90 is deployable, or at least outwards or at least extends along goods width 24 on the contrary, and the sidepiece that is connected that each deployable connecting portion section is configured to absorb the correspondence of composite members is fixed on the outer surface 56 of the first side sheet 52.Each deployable connecting portion section operationally be interposed in its relevant side sheet between outer surface 56, leave the outer surface of relevant side sheet and outwards launch motion to allow to absorb composite members.
In particular aspects of the present invention, at least one provided longitudinal component length 84 of back sheet and top flat layer, this longitudinal component length 84 is less than goods length 26, and back sheet and top flat layer can have the longitudinal length that does not wait.Back sheet can be longer than top flat layer (for example Fig. 3 to 3D), and perhaps, the top flat layer can be longer than back sheet.In concrete structure, back sheet 30 can provide the part length 84 less than goods length 26, and in other structure, top flat layer 28 can provide less than the part length of goods length 26 (for example Fig. 3 to 3D).In Fig. 1 and 1C in the desired configuration of canonical representation, each top flat layer and back sheet have the relevant separate part length less than total goods length.Therefore, top flat layer and back sheet all can provide the longitudinal component length less than goods length.
The element that the first side sheet 52 preferably provides separately, this element connect and cross the surface stretching, extension towards interior side of the first end 78 that absorbs composite members.The first side sheet can be connected with the absorption composite members, and is arranged to provide the back waistband portion 12 of goods.Perhaps, the first side sheet 52 can be connected with the absorption composite members, and is arranged to provide the front waist belt part 14 of goods.As Fig. 1 canonical representation, back waistband portion 12, the second side sheets 53 that the first side sheet 52 can connect so that goods to be provided can be connected with the longitudinal relative end that absorbs composite members 32, with the front waist belt 14 that goods are provided.
The second side sheet 53 can be the element that provides separately, and this element connects and cross the surface stretching, extension on the side of the second end 79 that absorbs composite members.The second side sheet 53 has the longitudinal slice length 59 less than goods length 26, and the second side sheet and the first side sheet 52 are vertically gone up spaced apart.In desired configuration, the second side sheet 53 can have the vertically end margin 61 of outer lateral terminal, and the end margin 61 of this vertical outer lateral terminal links to each other with the end margin of second terminal of goods basically.To absorb composite members 32 and connect, thus extending transversely and stride across the outer surface 56 of the second side sheet 53 as scheme shown in the typical case, absorb composite members and operationally stretch, so that make the first and second side sheets interconnection and bridge therebetween.
As scheme shown in the typical case, in the second end 79 that absorbs composite members, the deployable connecting portion section 90 of a correspondence can connect along at least a portion of each the relevant sidepiece 80 that absorbs composite members 32.Each deployable connecting portion section 90 can be at least outwards or at least along the horizontal spreading of goods width 24, and each deployable connecting portion section can be configured to and will absorb the connecting on the outer surface 56 that sidepiece is fixed to the second side sheet 53 of correspondence of composite members.
In required structure, goods can have first waistband portion 12 of the front or rear portion that is arranged in diaper, and are arranged to and first waistband portion, 12 vertical second relative or front waist belt parts 14.Crotch part 16 interconnects with first and second waistband portion 12 and 14 respectively in the middle of one.In illustrated structure, mid portion operationally provides by absorbing composite members 32.At the horizontal opposed side edges place of the mid portion of goods, the leg opening that provides is given elasticity by the lower limb elastic component.The system that fastening system for example comprises securing member 36 is configured as provides the back to preceding fastening, wherein back waistband portion 12 can be arranged to and 14 one-tenth overlaying relations of front waist belt part, so that around wearer's health, and diaper is remained fixed on one's body the wearer.Perhaps, fastening system can adopt fastening tab 36, and this fastening tab 36 is configured as and provides A-P fastening, thereby is arranged to make front waist belt part 14 and back waistband portion 12 one-tenth overlaying relations to be connected, so that in use around wearer's health.
Different aspect of the present invention (individually and in combination) can favourable help provide a kind of goods, and these goods have improved fit degree, improved absorbability and improved anti-leakage.Goods can also be with low-cost and high efficiency manufacturing.Particularly, absorb composite members extensible connection on the sheet of side and allow to absorb composite members volume increase during use, meanwhile, the side sheet keeps tight and fit consistent around the waist of wearer's health with trunk.In addition, the side sheet can better provide the wet more effective barrier layer that absorbs between composite members and the wearer's skin.The transverse side edges place of the absorption composite members of the middle crotch part that the lower limb elastic of deployable connecting portion section and specified portions are positioned at diaper, at this, elasticity and deployable lateral edges also allow to absorb composite members and leave the wearer and increase to outer volume, meanwhile, not influencing the lower limb elastic basically locatees with closely fit around wearer's lower limb.As a result, goods of the present invention can advantageously increase absorbability and reduce leakage.
As canonical representation, the front waist belt part 14 of diaper 10 has laterally relative anterior paired sidepiece 88, and then waistband portion 12 has laterally relative rear portion one-tenth counter-lateral quadrents 86.Mid portion 16 and preceding and back waistband portion interconnection, and the diaper crotch part is provided, this crotch part is usually placed between wearer's the lower limb.Goods can have the specified securing member land regions 50 on the outer surface that is arranged in goods.Land regions 50 can with parts for example back sheet 30 or the second side sheet, 53 monolithic moldings.As Fig. 2 canonical representation, the element that land regions 50 can or provide separately, this provides separately on the outer surface that element for example is arranged in back sheet 30.30 one-tenth of liquid-permeable topsheet layer 28 and back sheet are overlapping in the face of relation, absorbing structure specified retain part 48 exercisable connections and be fixed in back sheet 30 and top flat layer 28 between.In specific structure, top flat layer 28 and to retain that part 48 can be configured to be stiff basically, and operationally be fixed on the back sheet element 30, so that suppress the over-drastic stretching of back elements basically.
Fig. 1 and 2 represents that typical disposable diapers 10 is in usually typical plane graph under the open and flat not contraction state (promptly the rivel that produces of all elastic components and shrink and eliminate) basically at it, Fig. 1 represents the surface on the side of diaper, this surface plans to contact with the wearer, and it is towards the observer.The outside of diaper defines a periphery, and this periphery has laterally relative longitudinal extending side edge 20; End margin edge 22 with vertically relative extending transversely.Lateral edges defines the leg opening of diaper, and is optional, and it can be curve and contoured.End margin is expressed as straight line, but also can be curve.
Consider the designated surface of goods and parts, when goods when the wearer arranges, different inside surfaces is configured to the health towards the wearer.When goods when the wearer arranges, different outer surfaces is configured to towards the health that leaves the wearer.
Diaper 10 generally includes a porous layer of liquid-permeable topsheet basically 28; Basically the impermeable back sheet 30 of liquid; One between top flat layer and back sheet the location be connected retain part 48; The exercisable vicinity that is positioned retains the processing section 46 of shoving partly; With the system of elasticity rivel element, for example comprise the system of lower limb elastic component 34 and waist elastic component 42.At least one the main surface liquid faced mutually that processing section 46 was positioned to and retained part 48 that shoves is communicated with, and top flat layer 28, back sheet 30, retain part 48, shove processing section 46 and flexible member 34 and 42 can be assembled into together, forms various known diaper configurations.Diaper comprises the system of taking turnover sheet (not shown) in and the system of lateral plate or ear's element 38 in addition, but their elastifications or give elasticity.
The example that comprises the goods of elastic side panels and the fastening tab through selecting structure is described in following document, the application number that is people such as T.Roessler is 168615 U.S. Patent application, its name is called " dynamically fit diaper ", and December was submitted (No. 10961, attorney) on the 16th in 1993.The different technologies that forms required fastening system is described in following document, be people's such as T.Roessler No. 5399219 United States Patent (USP)s, name is called " method of making the fastening system of dynamically fit diaper ", authorizes March 21 nineteen ninety-five (No. 11186, attorney); The application number of D.Fries is 286086 U.S. Patent application, and name is called " technology of assembling elastic ear portion ", and on August 3rd, 1994 was submitted (No. 11169, attorney) to, and this application is with No. 5540796 United States Patent (USP) mandates; With the application number of D.Fries be 08/415383 U.S. Patent application, name is called " packaging technology of lamination band ", submit (attorney 11950) April 3 nineteen ninety-five to, it is with No. 5595618 United States Patent (USP) mandates.Above-mentioned disclosed document at this in the mode of consistent (non-conflict) as a reference.
As Fig. 1 canonical representation, diaper 10 defines the width dimensions 24 of longitudinally extending length dimension 26 and extending transversely usually.Diaper can have any required shape, for example rectangle, I shape, common hourglass shape or T shape.For T shape, the transverse arm of " T " comprises the front waist belt part of diaper, the perhaps alternative back waistband portion that comprises diaper.
Top flat layer 28 and back sheet 30 can be extended usually jointly, perhaps can not extend jointly.In top flat layer 28 and the back sheet 30 any or two can have usually greater than and extend beyond the length dimension and the width dimensions of the corresponding size that retains part 48, so that the end margin that absorbs composite members 32 or zone 78 and 79 and lateral edges or zone 80 to be provided.In particular aspects, the lateral edges that absorbs composite members can be configured to provide at least a portion of the lateral edges 20 of goods.As Fig. 1 and 1A canonical representation, for example, the lateral edges that absorbs composite members 32 can provide along the goods lateral edges of the mid portion 16 of goods.Top flat layer 28 operationally is associated and superposes thereon with back sheet 30, therefore limits the periphery of diaper.Waist area comprises the some parts of diaper, and this part is whole or part covers or around wearer's waist or middle lower trunk when when wearing and tearing.In the structure of canonical representation, the first and second side sheets 52 and 53 are arranged to provide respectively preceding and back waist area 12 and 14.The middle crotch part 16 of goods is between waist area 14 and 12 and make it interconnection, and it also comprises the part of diaper, and this part is positioned between wearer's the lower limb when wearing and tearing, and covering wearer's lower trunk.Like this, middle crotch part zone 16 be in diaper or other disposable use absorbent article in the multiple liquid zone of shoving and taking place usually.
Back sheet 30 edge usually absorbs the outer surface setting of composite members 32, and can be made of liquid permeable material, is configured to the impermeable material of liquid basically but preferably include.For example, typical back sheet can by thin plastic or other flexibility basically liquid-impermeable material make.As used in this specification, term " flexibility " refer to material be obedient to and be easy to be deformed to general shape and wearer's body contour.Back sheet 30 prevents to absorb the exudate that comprises in the composite members 32 makes goods for example become wet, and this sheet contacts with diaper 10 with upper garment.In certain embodiments of the invention, back sheet 30 can comprise for example polyethylene film of film, and it has the thickness from about 0.012 millimeter (0.5 mil) to about 0.051 millimeter (2.0 mil).For example, the tergite tunic can have the thickness of about 1.25 mils.
The another kind structure of back sheet can comprise to be weaved or the nonwoven fibrous webs precoat, and its whole or section construction or processing is so that make the zone of the selection of close or the most approaching absorption composite members obtain the liquid impenetrability of desired level.For example, back sheet can comprise the gas-permeable non-woven fabric layer, this laminates to gas can or impermeable polymer film on.Other example of fiber cloth shape back sheet material can comprise that stretching approaches or stretching heat lamination material, and this material is by 0.6 mil (0.015 millimeter) thick polypropylene casting film and 0.7 ounce per square yard (23.8gsm) polypropylene spunbond material (2 denier's fiber).This material has been used to form the outer cover of HUGGIES ULTRATRIM diaper, and this is by the commercial supply of Kimberly-Clark Corporation.Back sheet 30 provides the outer cover of goods usually.Choose wantonly, goods can comprise the independent outer cover parts that are additional on the back sheet.
Back sheet 30 can comprise micropore, " can breathe " material, and this material permission gas for example steam is escaped from from absorbing in the composite members 32, prevents basically that meanwhile the liquid exudate from passing back sheet.For example, can breathe back sheet can be made of microporous polymer membranes or supatex fabric, and the coated or modification of this supatex fabric is so that give the liquid impenetrability of desired level.For example, suitable microporous membrane can be the PMP-1 material, and it is by the supply of Mitsui Toatsu chemical company, and general headquarters of the said firm are in the Tokyo; Perhaps by Minneapoils, the XKO-8044 polyolefin film that the 3M company of Minnesota provides.But back sheet is omphalos or be provided with pattern or rough facing also, to present the outward appearance of more aesthstic pleasant.
In not isostructure of the present invention, parts are back sheet 30 or take tab in and be configured to make gas-permeable for example, meanwhile aqueous fluid is constituted resistance and limited penetration, the blocking solution parts can have selection head that can support water and the structure that can not pass through its leakage basically.Be used for determining that material is federal test method standard FTMS191 method 55141978 or its equivalent method to the suitable technology of the resistance of liquid infiltration.
Back sheet element 30 is the impermeable and semi-liquid materials of sufficient liquid, for example urinates and the undesirable leakage of excrement so that prevent waste materials basically.For example, the supporting that the back sheet element can be required is at least about the head of 45 centimetres (cm), and do not leak basically.Perhaps the 30 selectable supportings of back sheet element perhaps can be supported at least about 60cm or higher head, to bring better effect at least about the head of 55cm.
The size of back sheet 30 is determined by the diaper of the particular design of size that absorbs composite members 32 and selection usually.Back sheet 30 for example can have common T shape, common I shape or improved hourglass shape, and the extensible distance that exceeds a selection of terminal edges that retains part 48, a distance in about 1.3 centimetres to 2.5 centimetres scope (about 0.5 to 1.0 inch) for example is to provide at least a portion of lateral edges and end margin edge.
Top flat layer 28 has the surface towards health, and this surface adapts to people's health, has soft feel, and to the wearer's skin nonirritant.And top flat layer 28 comparable absorption composite members 32 have little hydrophilic, and have enough holes for liquid infiltration, pass its thickness arrival absorption composite members thereby make liquid be easy to infiltration.Suitable top flat layer 28 can be by for example material manufacturing of the bonded broad range of choice of porous foam, reticulated polymer foam, porous plastic film, natural fiber (for example wood or cotton fiber), synthetic fibers (for example polyethylene or polypropylene fibre) or natural and synthetic fibers of paper web.Top flat layer 28 is commonly used to help to make wearer's skin isolated with the liquid that is retained in the absorption composite members 32.
Various weaving with supatex fabric can be used as top flat layer 28.For example, the top flat layer can by desirable fiber melt and spray or spunbond paper web constitutes, and can be bonded carded-paper web.Various fabrics can be made by natural fiber, staple fibre or its mixture.
For purposes of the present invention, term " nonwoven web " refers to the paper web of fibrous material, and this cellulosic material is not shaped by weave woven or knitting.Term " fabric " " be used to refer to that all are weaved, knitting and non woven fibre matter paper web.
Top flat layer fiber can be made by hydrophobic basically material, and hydrophobic material is selectively with surfactant or other processing, so that give the wettability and the hydrophilic of desirable level.In certain embodiments of the invention, top flat layer 28 is non-woven, spunbond polypropylene fabrics of being made by about 2.8-3.2 denier's fiber, and this fiber forms the paper web of the density of basic weight with about 22gsm and about 0.06gm/cc.Fabric can be with the surfactant of effective quantity, and for example about 0.28% Triton X-102 surfactant carries out surface treatment.Surfactant can be by traditional mode, and for example sprinkling, stamp, brushing or similar approach apply.
Top flat layer 28 is connected with the exercisable mode of back sheet 30 usefulness or combines.As used herein, term " is correlated with " and is comprised following structure, promptly by top flat layer 28 directly is fixed on the back sheet 30, thereby top flat layer 28 and back sheet 30 are directly linked together, and by top flat layer 28 is fixed on the intermediary element, and successively this intermediary element is fixed on the back sheet 30, thereby top flat layer 28 is connected indirectly with back sheet 30.For example,, sonic bonds for example bonding, heat bonding, pin joint, stitching or any other interconnection technique as known in the art by bindiny mechanism's (not shown), and the combination of these technology, can make top flat layer 28 and back sheet 30 interconnection at least a portion neighboring of diaper.For example, adhesive phase, the pattern of adhesive of spraying or delegation's defiber, vortex or the point of structure bond of even successive adhesive phase, composition pattern can be used to top flat layer 28 is fixed on the back sheet 30.Should understand easily, above-mentioned bindiny mechanism also can be used to make various other parts of goods as described herein suitably interconnection, assembles and/or is fixed together.
Absorbent body or composite members 32 provide a kind of absorbing structure, this absorbing structure comprises that retains a part 48, this retains part 48 and is used for keeping and stores liquid and other waste materials that absorbs, for example by selected hydrophilic fibers and high-absorbency particles make shown in the absorption liner.Absorb composite members and locate and be interposed between top flat layer 28 and the back sheet 30, to form diaper 10.Absorb composite members and have a kind of like this structure, this structure is compressible usually, be obedient to, non-stimulated to wearer's skin, and can absorb and keep the human body exudate.Should be appreciated that, for purposes of the present invention, absorb the composite members structure and can comprise single integral material, perhaps, can comprise the some single isolating material of effectively combining.
Various wettable, hydrophilic fibrous materials are used to form the parts that absorb composite members 32, particularly retain part 48.The example of the fiber that is fit to comprises the organic fiber of the natural generation that is made of inherent wettable material, for example cellulose fibre; The synthetic fibers that constitute by cellulose or cellulose derivative, for example staple fibre; The inorfil that constitutes by inherent wettable material, for example glass fibre; By the synthetic fibers that inherent wettable thermoplastic polymer makes, for example special polyester or Fypro; With the synthetic fibers that constitute by non-wetable thermoplastic polymer, polypropylene fibre for example, it is hydrophilic that this polypropylene fibre has utilized suitable method to become.Fiber is for example with having hydrophilic after the silica-treated, the material that this processing is used has suitable part hydrophilic, and be not easy from fiber, to remove, perhaps, during forming fiber or coat non-wetable hydrophobic fiber with hydrophilic polymer afterwards, thereby can make this hydrophobic fiber possess hydrophilic property.For purposes of the present invention, also can utilize above-mentioned various fiber to select to mix.
As used herein, fiber described in term " hydrophilic " or fiber surface is moistening because aqueous fluid contacts with fiber.The moistening degree of material can be described according to the contact angle and the surface tension of liquid and relevant material.The equipment and the technology of the wettability of the mixture of suitable measurement special fiber material or fibrous material can be provided by Cahn SFA-222 surface force analytical system or the system that is equal in fact.When measuring, have fiber representative " wettable ", and have fiber representative " non-wetable " greater than 90 ° contact angle less than 90 ° contact angle with this system.
Absorb composite construction 32 and can comprise that retains a part, this retains the matrix that part has hydrophilic fibers, the paper web of cellulosic fine hair for example, and this paper web is mixed with the granule of high-absorbent material.In specific structure, absorb the mixture that part 48 can comprise superabsorbent hydrogel shaped particles and synthetic polymer meltblown fibers that retains of composite members, perhaps super absorbing particles and cellulosic be the mixture of moulding material altogether, and this mixture comprises the admixture of natural fiber and/or man-made polymer's fiber.Super absorbent article can with hydrophilic fibers intimate mixing basically, perhaps inhomogeneous mixing.For example, the concentration of super absorbing particles can be non-stepwise gradient and distribute in the substantial portion of the thickness (z-direction) of absorbing structure, and the concentration on side that absorbs composite members is lower, and the concentration in the outside of absorbing structure is higher relatively.Authorize people such as Kellenberger and described suitable z-gradient structure in the United States Patent (USP) 4,699,823 on October 13rd, 1987, whole disclosures of this article are incorporated into this in the mode of consistent with description of the invention (not conflicting), with as a reference.In addition, the concentration of super absorbing particles can be non-stepwise gradient and distribute in the substantial portion of the thickness (z-direction) of absorbing structure, higher towards the concentration on the side that absorbs composite members, and lower towards the concentration in the outside that absorbs composite members.Super absorbing particles can also be distributed in the basic intravital common discrete layer of hydrophilic fibers.In addition, can be in the matrix of fiber or selectively arrange the superabsorbents that two or more are dissimilar along the diverse location of the matrix of fiber.
High-absorbent material can comprise absorbent gelling material, for example superabsorbents.Absorbent gelling material can be the natural polymer and the material of natural, synthetic and modification.In addition, absorbent gelling material can be an inorganic material, and for example silica gel, or organic compound is cross linked polymer for example.Term " crosslinked " instigates common water-soluble material effectively to present water insoluble basically but inflatable any method of opening.This method can comprise, for example physical entanglement, crystallization group, covalent bonds, ionic complex and association, hydrophilic association, for example hydrogen bonded and hydrophobic association or Van der Waals for.
The example of synthetic absorbent gelling material polymer comprises poly-(acrylic acid) and poly-(methacrylic acid), poly-(acrylamide), poly-(vinyl ethers), has the maleic anhydride multipolymer of vinyl ethers and alhpa olefin, poly-(ethylene is for ketopyrrolidine), poly-(ethylene morpholine) (vinylmorpholinone), gather alkalinous metal and ammonium salt and its mixture and the copolymer of (vinyl alcohol).And, being suitable for use in the polymer that absorbs in the composite members comprises natural and natural polymer modification, the for example acryionitrile grafted starch of hydrolysis, acrylic acid grafted starch, methylcellulose, chitosan, carboxymethyl cellulose, hydroxypropyl cellulose and natural gum, for example alginate, synthesising biological polymeric gel, locust bean gum and similar material.The mixture of for purposes of the invention, natural and all or part of synthetic absorbing polymeric also of great use.Authorize people such as Assarsson and in 3,901, No. 236 United States Patent (USP)s on August 26th, 1975, disclose other suitable absorbent gelling material.Authorize people such as Masuda on February 28th, 1978 4,076, No. 663 United States Patent (USP)s and people such as Tsubakimoto in 4,286, No. 082 U.S. Patent Publication on August 25th, 1981 the synthetic technology that absorbs gel polymer of preparation.
Synthetic absorbent gelling material forms the xerogel of hydrogel typically when moistening.Yet term " hydrogel " also is used to refer to the moistening and non-moistening form of material usually.
As previously mentioned, be used in the form that the high-absorbent material that absorbs in the composite members 32 is taked discrete particle usually.Granule can have any desirable shape, for example, and spiral type or half-spiral, cube, shaft-like, polyhedron etc.Shape with big greatest dimension/smallest dimension ratio, for example, pin, thin slice and fiber also can be considered in this use.The agglomeration of particles thing of absorbent gelling material also can be used on and absorbs in the composite members 32.The desirable granule that uses have from about 20 microns to about 1 millimeter average-size.Here employed " particle size " refers to the weighted mean of the minimum dimension of individual particle.
Hydrophilic fibers and high-absorbency particles can be constructed with the average composite members basic weight in about 400-900gsm scope.Aspect some, average composite members basic weight is in about 500-800gsm scope, perhaps in about 500-750gsm scope, so that required performance to be provided of the present invention.
In order to improve the degree of taking in of high-absorbent material, absorb composite construction 32 and can comprise an outer package, for example wrapping paper 74, this wrapping paper 74 near and place around retaining part 48, it can be adhered on the absorbing structure, and is adhered on various other parts of goods.Wrapping paper is layer of absorbent preferably, and this absorbing material covers main side and the outer surface that retains part, and preferably seals all neighborings that retain part basically, so that form complete basically big envelope around it.In addition, wrapping paper can provide and absorb packing, and this absorption packing covers main side and the outer surface that retains part, and only seals the transverse side edges that retains part basically.Therefore, the linearity of the transverse sides of wrapping paper and the part that curves inwardly are partially enclosed around retaining.Yet, deposit at this cloth, in the waist area of goods, the end margin of wrapping paper may not can around retain the part the end margin complete closed.
For example, complete wrapping paper 74, perhaps the base layers of wrapping paper at least can comprise melting and spraying paper web, this melt and spray paper web by meltblown fibers for example the fusion-jetting polypropylene fiber constitute.Another example that absorbs packing 74 can comprise the cellulosic fabric of a low porosity, for example mixes the thin paper that constitutes by hardwood/softwood fiber approximate 50/50.
Absorb packing 74 and can comprise a multicomponent wrapping paper, this multicomponent wrapping paper comprises an independent side wrapper and an independent outside wrapper, and each wrapper extend past retains the whole of part 48 or some is peripheral.The wrapping paper of this structure for example can be convenient to be configured as around the periphery that retains part 48 seal fully basically and seal.In the back waistband portion of described diaper, absorb packing and also can be configured to leave the distance that the periphery that retains part extends one section increase, so that increase the opacity and the intensity of diaper rear section.In described embodiment, the side of absorption packing 74 and outside layer can extend through and retain periphery partly at least about 1/2 inch, with provide to outer process, the flange-type bonding zone, the periphery that absorbs the side part of packing on this bonding zone can be connected wholly or in part with the periphery of the Outboard Sections that absorbs packing.
The side of wrapping paper 74 and outside layer can be made of substantially the same material, perhaps are made of different materials.For example, the outside layer of wrapping paper can be made of the material with higher porosity and low basic weight, for example the wet strength cellulosic thin paper that is made of softwood pulp.The base layers of wrapping paper can comprise having a kind of than in the aforementioned wrapping paper material of low porosity.The base layers of low porosity can prevent preferably that super absorbing particles from transferring on the wearer's skin, and the outside layer of high porosity, low basic weight helps to reduce cost.
Diaper 10 also can comprise the processing layer 46 that shoves, and this processing layer 46 that shoves helps to make the liquid speed of shoving in the absorption composite members that can introduce goods to slow down and spread.Also can be in the limited a period of time temporary transient liquid hold-up of surge layer 46, the distribution of diffusion and guiding liquids discharges liquid then, retains in the part 48 so that absorb.In described embodiment, for example, surge layer 46 can be positioned at top flat layer 28 towards body side surface.In addition, surge layer 46 location is near the lateral surface place of top flat layer 28, so that be interposed in top flat layer 28 and retain between the part 48.The example of the suitable processing layer 46 that shoves is 206 in the application serial of C.Ellis and D.Bishop, describe in 986 the U.S. Patent application, this patent application title is " the cellulosic supatex fabric surge layer that personal care absorbent articles and similar articles are used ", submitted (attorney 11 on March 4th, 1994,256), it is corresponding to 5,486, No. 166 United States Patent (USP)s; With the application serial of C.Ellis and D.Everett be 206,069 U.S. Patent application, its title is " used improved the shoving of personal care absorbent articles and similar articles handled the cellulosic supatex fabric ", submitted (attorney 11 on March 4th, 1994,387), it and 5,490, No. 846 United States Patent (USP) correspondences; Its whole disclosures provide as a reference at this in the mode of unanimity.
Each side sheet can have required shape, and this shape is rectangle or non-rectangle normally.The horizontal relative end of side sheet exceeds the lateral edges horizontal expansion that absorbs composite members 32, with the ear 38 of extension that goods are provided.Therefore, each side sheet can extend across the whole basically transverse width of goods respective waist straps part.Each side sheet can exceed the side horizontal expansion of top flat layer 28, and can exceed the side horizontal expansion of back sheet 30.In concrete structure, the side sheet can be provided with lateral ends, and this lateral ends has wedge-type shape, so that wedge shape ear is provided.Each wedge shape ear can have long longitudinal length near the lateral edges place that absorbs composite members, and has short longitudinal length at the horizontal far-end of ear.
In required structure, the middle body at least 64 on the longitudinal medial limit 62 of the horizontal expansion of the first side sheet 52 can not be connected basically with the body side surface that absorbs composite members 32.Similarly, the second side sheet 53 can have the end margin 63 of longitudinal medial terminal, and the middle body at least 65 of end margin 63 is not connected basically with absorption composite members 32.As required, arbitrary in the inner side edge or two limits can be straight basically or crooked.Aspect specific, at least a portion of any in the side sheet 52 and 53 or both inner side edges can be arranged in as shown in Figure 1 concave surface in the structure of inboard.As scheme shown in the typical case, specified sag vertical curve can be from absorbing each lateral edges of composite members, and can laterally traverse the absorption composite members usually, and the mid portion of curve moves to the longitudinal end of goods simultaneously.Curve can help to improve the concordance of side sheet and wearer's body profile.
In another aspect of this invention, the end margin 82 of first vertical terminal of whole basically absorption composite members 32 is positioned at relative inner, and the end margin 60 of the terminal in vertical outside of it and the first side sheet 52 is spaced apart.Therefore, but this side sheet longitudinal extension through the end margin 82 of the common close terminal of the correspondence that absorbs composite members, and the end margin 82 that exceeds this terminal along its length stretches out.Similarly, the end margin 83 of second vertical terminal of whole basically absorption composite members 32 is positioned at relative inner, and the end margin 61 of the terminal in vertical outside of it and the second side sheet 53 is spaced apart.Therefore, but the second side sheet longitudinal extension through the end margin 83 of the common neighboring terminals of the correspondence that absorbs composite members, and the end margin 83 that exceeds this terminal along its length stretches out.
Under common service condition, particularly after the absorption composite members began to absorb liquid, deployable connecting portion section 90 can advantageously allow and be that the volume that absorbs composite members 32 controllably launches to prepare.In various structures of the present invention, each deployable connecting portion section 90 can be the element that provides separately, and this element is assembled into goods, perhaps can be by whole formation of specified portions of the parts of other existence of goods.For example, deployable connecting portion section can be formed by back sheet 30, top flat layer 28 or its effective bonded specified portions.In particular aspects of the present invention, different deployable connecting portion sections can be essentially no absorber materials, for example hydrophilic fibers and super-absorbent polymer.
With reference to Figure 1A, for example, deployable connecting portion section 90 can comprise that at least one z-folds pleating part 92, and the folding pleating part 92 of z-can be arranged on each sidepiece 80 place that absorbs composite members 32.In the illustrated structure of typical case, for example, pleating part can provide the interlaminate layer of predetermined structure, and this interlaminate layer can flatten together, so that the initial small size structure that absorbs composite members 32 is provided.During use particularly during absorbing liquid, the interlaminate layer scatters effectively, thereby the massive structure of a series of successive one or more increases basically is provided, and it is used for increasing with the volume that absorbs composite members, and the volume increase that particularly retains part 48 combines.
Aspect concrete, as Fig. 7 canonical representation, folding or other parts that provide separately of a z can be provided extensible connecting portion section 90, these parts through specifying so that absorbing between the outer surface 56 of the composite members 32 and the first side sheet 52 interconnection.Perhaps, the folding pleating part 92 of z can be provided by the specified side marginal zone of top flat layer 28 and/or back sheet 30 basically, and the side that this pleating part 92 surpasses the terminal that retains part 48 laterally extends.As Fig. 6 canonical representation, the folding pleating part of z can comprise top flat layer 28 and top flat layer 30 two-part lateral edge portions.In this example, liquid-tight basically back sheet 30 and basically the lateral edges of the top flat layer 28 of liquid permeable all can be laterally stretch and the side that surpasses this terminal stretches out through the side of the terminal that retains part 48 and wrapping paper 74.Then, the outstanding back sheet and the side edges z that combines of top flat layer are folding, thereby form required deployable connecting portion section.
Shown in typical case among Fig. 6 A, z folds the interchangeable only lateral edge portions of back sheet 30 that comprises of pleating part.In this example, the lateral edges of liquid-tight basically back sheet 30 can laterally pass through and surpass the side extension of the terminal that retains part 48 and wrapping paper 74.Then, the extension side edges z of back sheet 30 is folding, thereby forms required deployable connecting portion section.Perhaps, top flat layer 28 also can be configured to laterally deployable.
In various structures of the present invention, each lower limb flexible member 34 can be fixed on the outer surface of laterally projecting back sheet, and this back sheet is near the side of its lateral terminal, so that along the relevant lateral edges longitudinal extension that absorbs composite members 32.Therefore, folding pleating each lateral edges that absorbs composite members that is positioned at of one of them z, and can distribute along the total length basically that absorbs composite members.
The relative outer side edges side sheet 52 or 53 relevant with it of each z folding pleating 92 effectively connects a position, and this location positioning is in the side inboard from the adjacent longitudinal extension of the correspondence of its relevant side sheet.Therefore, can provide permission to absorb composite members 32 by the folding pleating 92 deployable connecting portion sections that provide from the flared mechanism of side sheet and wearer's health.
About the folding pleating parts 92 of z basically, z is folding pleating along goods length 26 longitudinal extensions.Best, the side sheet that is close in the pleat does not connect mutually basically.Randomly, bonding can be used to of a little binder or other type slightly links together two or more adjacent pleat sheets.Yet this connection between the pleat sheet should form desirable unfolded intensity and the distribution that does not excessively suppress connecting portion section 90.Absorb liquid when retaining part 48, and volume retains finally being deployed on the deployable connecting portion section 90 of part and applies tensile stress when increasing.Connecting portion section 90 launch to discharge effectively the stress that applies subsequently, and leave the volume that mode increase that the first side sheet 52 outwards increases retains part 48 to allow to retain part.As a result, the first side sheet 52 can keep its required closely next to the shin around wearer's body, and can resist gap or sagging formation better, this gap or saggingly allow excessive, unwanted leakage.
Another aspect of the present invention has deployable connecting portion section 90, and wherein horizontal deployable district or element 68 (for example, Fig. 7 and 8) are configured to make as required the outer surface 56 that absorbs composite members 32 and specified side sheet 52 or 53 interconnection.In this structure, in lower limb flexible member 34 side edge near the outside lateral terminal of deployable elements, the interior or outer surface that each lower limb flexible member 34 can its corresponding deployable elements 68 connects, so that along the goods longitudinal extension.Therefore, lower limb flexible member 34 directly is not connected with absorption composite members 32.Deployable elements 68 can be formed by various suitable materials, for example weaves or non-woven crepe fabric, the thin film that creases, apertured film, braided fabric and analog, and their combination.
In aspect specific, deployable elements 68 can be the parts that provide separately, and these parts are assembled and are fixed on the goods, and this is as Fig. 7 canonical representation.Perhaps, deployable elements 68 can with other existing parts monolithic molding, perhaps by other existing parts monolithic molding, for example top flat layer 28 (for example Fig. 6 B) or back sheet 30 (Fig. 6 B).Extensible top flat layer of at least a portion or back sheet can be laterally extended through the side of the terminal that retains part 48 and wrapping paper 74, and it is outstanding to exceed the side of the terminal that retains part 48 and wrapping paper 74.
With reference to figure 6A, for example, extendable members can have formation some little pleat 94 thereon.As scheme shown in the typical case, little pleat parts 94 can provide separately, and are assembled in the goods in the position that is folded between the outer surface 56 that absorbs the composite members 32 and the first side sheet 52.Perhaps, little pleat parts 94 can be provided by the single basically part integral body of top flat layer 28 and/or back sheet 30.The side that this single part can surpass the terminal that retains part 48 laterally extends, and wherein has required little pleat of formation.Little pleat material can comprise Woven fabric, supatex fabric, polymeric film and similar material, and combination, and these materials are treated to produce required little pleat.This processing for example can comprise traditional creasing and little pleat technology.
On the other hand, deployable connecting portion section 90 can comprise elastomeric material, but this elastomeric material is at least along goods width 24 elastic stretchings.Elastomeric material can be by film, strand wire harness, lamination composite members or analog and in conjunction with constituting.For purposes of the present invention, elastomeric material can be stretched to 67% elongation, retraction then.Behind retraction, the retraction force under 50% elongation is that minima is about lateral length (every centimetre of lateral length of about 16gmf of 40 fors (gmf) per inch material at least; Every centimetre of lateral length of about 0.15 newton).In addition, the retraction force under 20% elongation is 10gmf per inch lateral length (every centimetre of lateral length of about 4gmf at least; Every centimetre of lateral length of about 0.04 newton).Lateral length is along the orientation measurement perpendicular to the stretching force that applies.For the test sample book that obtains from described structure, the lateral length of sample is usually along goods vertical 27.
In another structure, back sheet 30 can comprise elastomeric material, and this elastomeric material can be along goods width 24 elastic stretchings, and this shows as Fig. 8 B typical case.Each the horizontal relative sidepiece 80 that absorbs composite members 32 can comprise the horizontal opposite side portion of the correspondence of back sheet 30.Each sidepiece of back sheet surpasses required the laterally extending of side of the corresponding terminal that retains part 48.
In particular aspects of the present invention, when being subjected to the deployable connecting portion section of 30 fors (gmf) per inch lateral length (every centimetre of lateral length of about 12gmf; During every centimetre of lateral length of about 0.12 newton) the horizontal tension that applies, each deployable connecting portion section 90 can provide extending transversely at least about 1 centimetre (transversely 25).Perhaps, deployable connecting portion section 90 can provide the extension at least about 2 centimetres, and randomly, extends to less about 4 centimetres under the tension force effect that is applied, to improve performance.On the other hand, be the deployable connecting portion section of 50gmf per inch lateral length (every centimetre of lateral length of about 20gmf applying tension force; Every centimetre of lateral length of about 0.19 newton), deployable connecting portion section 90 can provide and be no more than about 12 centimetres elongation.Perhaps, deployable connecting portion section can provide and be no more than about 10 centimetres elongation, can select to be no more than about 8 centimetres, so that improve.For the purpose of measuring the elongation parameter, the lateral length of deployable connecting portion section is along measuring perpendicular to applying tension direction.For the sample of described structure collection of the present invention, the lateral length of sample distributes along vertical 27 of goods usually.
A kind of suitable technology is used for producing the curve of typical tensile load than elongation, and be used for determining the elongation and/or the retraction force parameter of selected parts or material, the ASTM standard method of test D882 (drawing process of the tensile property of test thin plastic sheet) that this technology can adopt nineteen ninety-five December formulation will describe in detail below." width " of sample is transverse width, and this transverse width can obtain from test product easily, and preferably about 2 inches (about 5.04 centimetres).At test period, specimen width is perpendicular to the tension direction that applies.For shown in structure, for example, vertical 27 along goods, specimen width is usually corresponding to the lengthwise dimension of deployable connecting portion section 90.The initial spacing of the clamp of tension test instrument is 3 inches (7.62 centimetres), and mobile clamp moves with the constant rate of speed of 50mm/min.Mobile clamp stops 10 seconds under 50 millimeters elongation, return its initial starting position with the speed of 50mm/min then.Complete stretching and retraction circulation power extension curve can be recorded on traditional computer, this computer is equipped with commercially available software, TestWorks forWindows3.09 version for example, this software can be from being positioned at 14000 Technology Drive, EdenPrairie, MTS Systm Corp. of enterprise of MN obtains.Make the data requirementization that is obtained, and with the power per unit length for example the appropriate units of fors per inch or every centimetre of sample of fors (or newton) " width " note.
With reference to figure 1,1B, 2,2B, 3 and 3C, each specified deployable connecting portion section 90 can be bonding, perhaps is fixed to the corresponding relative section of side sheet with exercisable side fixture 40.Each side fixture 40 can be continuous or discontinuous basically, and can distribute at random or with selected zone map.In addition, goods of the present invention can comprise the end connection 44 of one first horizontal expansion, and this end connection 44 distributes along at least a portion of the first end 78 that absorbs composite members 32, so that the end that helps to absorb composite members is fixed on the side sheet 52.End connection 44 also can be formed from provides sealing, liquid barrier layer connector, this connector can help to stop liquid to pass through between the outer surface 56 that absorbs the composite members and the first side sheet 52.Similarly, the end connection 44 of second horizontal expansion can distribute along at least a portion of the second end 79 that absorbs composite members 32, be fixed on the second side sheet so that will absorb second end of composite members, and can help to stop liquid between the outer surface 56 that absorbs the composite members and the second side sheet 53, to pass through.
Side fixture 40 and end connection 44 can be provided by various suitable mechanisms.For example, each side fixture 42 and end connection 44 can comprise that binding agent is bonding, heat bonding, ultrasonic bonds, pin, nail or similar device, with and combination.
In the structure that the typical case shows, each end connection 44 is provided by plurality of single isolated, heat that is arranged to selected pattern or ultrasonic bonds.Bond pattern can be that rectangle or non-rectangle distribute, and operationally is configured to provide in goods required fixing, deployable property and/or release-resistance.Each end connection 44 can comprise that randomly horizontal expansion is bonding, and this bonding major part along the transverse width that absorbs composite members is continuous basically.Similarly, each side fixture 40 can comprise that longitudinal extension is bonding, and this bonding major part along goods longitudinal length partly links to each other basically, and in this goods part, each deployable connecting portion section operationally is fixed on its corresponding relevant side sheet.
Of the present invention concrete aspect in, arbitrary in the side sheet 52 and 53 or both can be made of the material of the wide region with different basic weights and performance.For example, the side sheet material can comprise knitting or other Woven fabric, supatex fabric, polymeric film, laminated product and similar material, with and combination.Understand easily, each independent side sheet can be made of different materials or substantially the same material.
In various structures of the present invention, the basic weight of side sheet material can be about 10g/m at least 2Minima.Perhaps, basic weight can be at least about 20g/m 2, and selectively, can be at least about 40g/m 2, so that improved benefit is provided.On the other hand, the basic weight of side sheet material can be no more than about 100g/m 2Maximum.Perhaps, basic weight can be no more than 80g/m 2, and selectively, can be to be no more than 60g/m 2, so that improved performance to be provided.
In different structure of the present invention, the side sheet material can be breathed freely basically or be airtight basically.The side sheet material can also be a fluid permeable or liquid is impermeable basically basically.In concrete structure, the side sheet material can essentially no elasticity.On the other hand, side sheet 52 and/or 53 can comprise a kind of elastomeric material, but this elastomeric material is elastic stretchings along horizontal goods width 24 at least.The example of this elastomeric material can comprise undergauge-bonding-laminated product (NBL), stretching-bonding-laminated product (SBL), undergauge-heat lamination goods or similar material, with and combination.This laminated product can provide the improved combination of cloth shape sensation and elastic stretching.
In required structure, the elastomeric side panels material can provide elasticity and at least about 3%, and preferably at least about 5% percentage elongation.Perhaps, percentage elongation can be at least about 10%, and selectively, can be at least about 20%, so that improved characteristic to be provided.On the other hand, it is about 200% that elastic extension can be no more than, and preferably be no more than about 100%.Perhaps, it is about 50% that percentage elongation can be no more than, and selectively, can be no more than about 30%, so that improved characteristic to be provided.
The percentage ratio of elastic stretching or other elongation can be determined according to following formula: 100* (L-L 0)/(L 0)
Wherein: the length of L=elongation,
L 0=initial length,
In addition, determine the tensile elongation amount under the tension force applying of 250 fors per inch width, this tension force is measured on perpendicular to the tensile direction that applies.
Can have longitudinal length 58,59 with reference to figure 1, the first side sheet 52 and/or the second side sheet 53, this longitudinal length is no more than about 80% maximum of goods length 26.Perhaps, any in the sheet of side or two have about 65% the longitudinal length that is no more than goods length 26 interchangeably, and selectively, are no more than the about 50% of goods length 26, so that improved benefit to be provided.In required structure, the longitudinal length of side sheet can be no more than about 40%.In another structure, it is about 35% that the longitudinal length of side sheet can be no more than, and selectively, is no more than the about 30% of goods length, so that improved characteristic to be provided.
In another aspect of this invention, the first side sheet 52 and/or the second side sheet 53 can have longitudinal length, and this longitudinal length is about 5% minima of goods length 26 at least.In addition, it is about 10% longitudinal length of goods length 26 at least that at least one in the sheet of side (or two) has, and selectively, is the about 15% of goods length at least, so that improved characteristic to be provided.Be preferably, it is about 2 centimetres longitudinal length at least that the particularly back side of at least one side sheet sheet can have.Be more preferably, selected side sheet can have the longitudinal length at least about 4 centimetres, and selectively, is about 6 centimetres at least, so that improved cooperation and xerosis cutis to be provided.
With reference to figure 4 and 4A, each lower limb flexible member 34 can be a composite members, and this composite members comprises at least one bearing bed 96 and plurality of elastic line thigh 98, and this elastica thigh is operably connected with bearing bed.Can use various mechanisms, for example binding agent, heat bonding, sound is bonding or similar means with and combination, connect so that the ideal between elastica 98 and the lower limb bearing bed 96 to be provided.In the structure shown in the typical case, the laminated product that each lower limb flexible member is made of the plurality of elastic line thigh that inserts and puts and remain between a pair of bearing bed.Bearing bed 96 is preferably by having about 10-50g/m 2Weaving or the supatex fabric formation of basic weight in the scope, but can select to make by polymeric film material.For example, shown bearing bed can be made of polypropylene spun-bonded supatex fabric, and in pairs bearing bed can with the binding agent of appropriate pattern for example the contact adhesive of swirl pattern be bonded together.
Shown in the typical case, each lower limb flexible member 34 is operably connected with the outer surface of at least a portion of the transverse side edges 20 of goods.Shown in the structure, for example, the lateral edges 20 of goods can be provided by the lateral section that absorbs composite members 32, this absorptions composite members 32 laterally extends above the side of the horizontal relative terminal that retains part 48.Understand easily, can use any described in this disclosure traditional bindiny mechanism, so that the lower limb flexible member is fixed on the goods.In the structure that the typical case shows, bindiny mechanism comprises the adherent distribution patterns of sound.In another aspect of this invention, inside, the body side surface of the respective side edges 20 of each lower limb flexible member 34 and goods are operably connected.
Each lower limb flexible member 34 can comprise at least one longitudinal end 35, and this longitudinal end 35 is dispersed out by absorbing composite members 32.In the embodiment that the typical case shows, each lower limb flexible member 34 is as a pair of vertically relative end, and all disperse out by absorbing composite members 32 each end.The end of lower limb flexible member 34 can its corresponding side sheet 52,53 outer surface 56 connect.
Flexible member 34 can have any one in many structures.For example, the width of independent flexible member 34 can change to about 25 millimeters (1.0 inches) or more from about 0.25 millimeter (0.01 inch).Flexible member can comprise a single elastomeric material line thigh, maybe can comprise several parallel or uneven elastomeric material line thighs 98, perhaps can be used in straight line or the curvilinear structures.Online uneven position, two or many line thighs can intersect mutually in flexible member or be interconnection.In specific structure, flexible member can comprise elastica thigh 98, this elastica thigh selectively and be laminated between the top flat layer 28 and back sheet 30 that absorbs composite members 32.Flexible member can also be fixed on the diaper by several method well known in the art.For example, flexible member can be adopt the ultrasound wave of various bonding patterns bonding, heat and wiper seal, perhaps with spraying or the hotmelt of vortex pattern is adhered on the diaper 10.
Lower limb flexible member 34 comprises carrying tablet, and the one group of elastic that is made of plurality of single elastica thigh is connected with this carrying tablet, and at this, the elastica thigh can intersect or be interconnection, perhaps separates fully and is spaced from each other.For example, carrying tablet can comprise the polymeric film of 0.002 centimetre of thickness, does not for example have the polypropylene material film of cotton ginning.The elastica thigh can for example be made of the LYCRA elastomer, and this elastomer can obtain from the E.I.Du Pont Company of enterprise in the Wilmington of Delaware State office.Each elastica thigh in the scope of about 470-1500 dtex (dtx), also can be about 940-1050dtx typically.In certain embodiments of the invention, for example, each elasticized lower limb hoop can use three or four line thighs.
That in addition, lower limb elastic component 34 can be normally straight or crooked.For example, Wan Qu elastic component can curve inwardly towards the longitudinal centre line of diaper.In specific structure, the cross central line symmetry with respect to diaper can be constructed or be arranged to the curve of elastic component.Crooked elastic component can have and curves inwardly and bandy reflection-type curve, and the center of the length direction of elastic component can selectively be offset selected distance to the front waist belt or the back belt of diaper, so that required cooperation and outward appearance to be provided.In certain embodiments of the invention, the interior point (summit) of the elastic component that this group is crooked can be offset towards the front or rear belt of diaper, and bandy reflecting part can be positioned to the front waist belt towards diaper.
Shown in the typical case, diaper 10 can comprise a waist elastics 42, and this elastic component 42 is arranged in the wherein arbitrary of front waist belt 14 and back belt 12 or both longitudinal edges.Waist elastics can be made of any suitable elastic materials, for example elastomer film, elastic foam, many elasticas thigh, elastomeric textile or similar material.For example, suitable elasticized waistband structures is to describe in 4,916,005 the United States Patent (USP) in people's such as Lippert the patent No., and all disclosures of this patent provide as a reference at this in the mode of unanimity.
With reference to the typical structure shown in Fig. 1 and 2, goods can comprise the system of " ear " portion or ear element 38.In specific structure, each ear or element 38 are in the relative transverse end place horizontal expansion of at least one waistband portion of back sheet 30, and this waistband portion for example is the back waistband portion 12 shown in the typical case, so that the terminal sidepiece of goods is provided.In addition, each ear can from horizontal expansion, terminal waistband limit 76 spans near the position of leg opening portion of relevant correspondence of diaper basically.Diaper 10 for example has a pair of laterally relative leg opening, this to leg opening by the curved edge of ear with shown in this corresponding close pars intermedia to the side portion 20 of longitudinal extension combine and provide (for example, Fig. 1).In other structure, ear can be provided by the ear element (not shown) that provides separately.
In various structures of the present invention, ear can form by selected diaper component is whole.For example, ear 38 forms by material layer is whole, and this material layer provides back sheet 30, perhaps can be formed by the material monolithic that is used to provide top flat layer 28.In another kind of structure, ear 38 can be provided by one or more elements that provide separately, element that this provides separately and back sheet 30, and top flat layer 28 connects and is assembled between back sheet and the top flat layer the perhaps various fixedly connected combination of this assembly.
In ad hoc structure of the present invention, each ear 38 can be formed by the material that provides separately, then the assembling that this material is suitable and being fixed to before or after diaper goods selected on the waistband portion.For example, each ear 38 can be connected with the back waistband portion of back sheet 30 along ear's connecting band, and is operably connected with the wherein arbitrary of the back sheet of goods and top flat layer parts or both.The inboard connecting band zone stack of each ear, and with the belt portion section of goods accordingly, transverse end edges portion lamination.Ear's horizontal expansion, so that form a pair of relative belt turnover sheet portion of diaper, and with suitable connection means connection, for example binding agent is bonding, heat bonding, ultrasound wave are bonding, clip, nail, stitching or similar means.The lateral edges horizontal expansion best, that ear exceeds the terminal of back sheet and top flat layer in the belt portion section corresponding, that connect of goods.
Ear 38 can be by essentially no elastic material, for example polymeric film, Woven fabric, supatex fabric and similar material, with and in conjunction with constituting, in particular aspects of the present invention, ear 38 can be by elastomeric material basically, for example stretching-bonding-lamination (SBL) material, undergauge-bonding-lamination (NBL) material, elastomer film, elastomer foam material or similar material constitute, but this ear 38 25 elastic stretchings transversely.For example, the patent No. of authorizing on May 5th, 1987 people such as T.Wisneski is U.S.P4, has described the suitable meltblown elastomeric fibers matter paper web that forms ear 38 in 663,220 the United States Patent (USP), and whole disclosures of this patent provide as a reference at this.The example of compound fabric comprises the supatex fabric of one deck at least that is fixed on the cellulosic elastic layer, this example is described in European patent application EP 0 217 032 A2 of public publication on the 8th April in 1987 the people such as inventor J.Taylor that list, and all disclosures of this patent provide as a reference at this.The example of NBL material is described in 5,226, No. 992 United States Patent (USP)s of authorizing on July 13rd, 1993 at Mormon, and all disclosures of this patent provide as a reference at this.
As previously mentioned, can use various suitable structures, so that ear 38 is fixed on the selected waistband portion of goods.But a pair of elasticity stretching element is fixed on the lateral sides of goods, so that exceeding the outer cover of goods and the horizontal relative sidepiece of liner component laterally stretches out, the particular instance of this suitable construction can be people such as VanGompel in 4 of mandate on July 3 nineteen ninety, 938, find in No. 753 United States Patent (USP)s, all disclosures of this patent provide as a reference at this in the mode of unanimity.
Each ear 38 is in one of them relative transverse end horizontal expansion at least one belt district of diaper 10.In an illustrated embodiment, for example, the first pair of ear be in relative transverse end place's horizontal expansion of the back belt portion section of back sheet 30, and the second pair of ear is in relative transverse end place's horizontal expansion of the front waist belt portion section of back sheet 30.Ear can be wedge shape, bending or other contour shape, and wherein the length of its inside bottom is more greater or lesser than the length of the end in its relative outside.Ear can for example have substantial rectangular shape or trapezoidal shape basically.
Diaper 10 also can comprise a pair of elastic turnover sheet of taking in, and this is taken the turnover sheet in and extends at length direction usually along vertical 27 of diaper usually.Take the turnover sheet in typically from lower limb elastic 34 side location laterally inwardly, and substantial symmetry is arranged on each side of longitudinal centre line of length direction of diaper.Shown in the structure, each is taken the turnover sheet in and has fixed basically limit part and limit part movably basically, and the operationally elastification of available at least one elastomer element closely contacts wearer's health and profile unanimity with it so that help each to take the turnover sheet in.Described the suitable example of taking the turnover chip architecture in 4,704, No. 116 United States Patent (USP)s of authorizing the 3 days November in 1987 of K.Enloe, all disclosures of this patent provide as a reference at this in the mode of unanimity.As required, taking the turnover sheet in is made of wettable or non-wetable material.In addition, take the turnover sheet material in and can be basically liquid thoroughly, can be permeable gas only, maybe can be both ventilative also liquid thoroughly.The application number of submitting in people's such as R.Everett 4 days March in 1994 is 206, other suitable turnover chip architecture of taking in has been described in 816 the U.S. Patent application, its title is " having the improved absorbent article that shoves and handle " (agent's catalogue listing 11375), it and United States Patent (USP) 5,562,650 correspondences, all the elements of this patent provide as a reference at this in consistent therewith mode.
For the required fixed system that retightens is provided, diaper 10 can comprise one or more specified platform area portion, for example, the first main platform area 50 (for example, Fig. 2 and 3), but this first main platform area 50 can provide an Action Target zone, be used for receiving fastening tab 36 on it get loose and can reconnect fixing.In certain embodiments of the invention, the platform area sticking patch can be positioned on the front waist belt part 14 of diaper, and is positioned on the outer surface of back sheet 30.Perhaps, the platform area sticking patch can be positioned on the back waistband portion 12 of goods, perhaps selectively is placed on the specified on inner surface of goods, for example the body side surface of top flat layer 28.Retention mechanism between platform area and the fastening tab 36 can be gluing, adherent, mechanical or their combination.In the context of the present invention, mechanical fastening system is the system that comprises co-acting part, engages in this co-acting part machinery so that required fixing to be provided.
Machinery secure component can by mechanical type fastener for example hook, buckle, clip, clasp and analog provide, this securing member comprise the cooperation and complementary, mechanical interlocking parts.For example, mechanical fastening system can be hook-and-the ring type fastening system.This fastening system generally includes one " hook " or hook class, protruding part and engages with hook part and releasably interconnected " ring " of cooperating or lopps, be recessed into parts.Best, interconnection is selectively can get loose in several cycles and can be connected again.For example, traditional system supplies with the VELCRO trade mark.The element of hook part can be provided by single or multiple hook structures, is for example provided by brachycephalic hook element.The element of ring component can be by Woven fabric, supatex fabric, knit goods, boring or perforated layer and analog, with and in conjunction with providing.Many structures of this closure system and variant refer to jointly hook-and-ring fastener.
The structure of use mechanical fastening system that can get loose, that be bonded with each other can for example be located first parts of machanical fastener, hook material 70 on for example fastening tab 36 and second co-acting part of the machanical fastener on the platform area 50.And, understand easily, in various structure of the present invention, the relative position of secure component and/or material and its corresponding platform area parts can replace.Therefore, first parts of machanical fastener can be positioned on the platform area 50, and second co-acting part of machanical fastener can be positioned on the fastening tab 36.
People such as T.Roessler in the United States Patent (USP) 5,019,073 of authorizing on May 28th, 1991, described suitable hook-and-example of ring fastening system, all disclosures of this patent provide as a reference at this in consistent therewith mode.The title of submitting in 28th in December in 1994 people such as G.Zehner is 366,080 U.S. Patent application (attorney 11,571) for the application number of " high stripping film securing member ", and it is with 5,605, No. 735 U.S. Patent application mandates; The title of submitting to April 13 nineteen ninety-five with people such as VanGompel for the application number of " multi-link fastening system " be described in 421,640 the U.S. Patent application suitable hook-and-other example of ring fastening system; All disclosures of these patents provide as a reference at this in consistent therewith mode.Title people such as A.Long is " the machanical fastener system of band clamping sheet ", submitted (attorney 12 on March 6th, 1996,563) application number is 08/603,477 U.S. Patent application, now in the United States Patent (USP) 5 of mandate on April 29th, 1997, described the example with the fastening tab of bearing bed structure in 624,429, all disclosures of this patent provide as a reference at this in consistent therewith mode.
In various embodiment of the present invention, what provide separately can lay respectively at any one or two places in the lateral ends 86 and 88 of any or two in belt 14 and 12 with fastening tab 36.For example, the embodiment that the typical case shows has at least one fastening tab 36, and this fastening tab 36 is positioned at each place, edge, distal side of back belt 12.More specifically, each securing member 36 assemblings and connection are so that extend from ear correspondence, the next-door neighbour that one of them the horizontal relative far-end at the first side sheet 52 provides.
Shown in hook-and-ring fastening system in, hook material and fastening 36 exercisable connections of tab, and the use ring material so that construct the platform area 50 of at least one cooperation.Platform area can for example be arranged on the outer surface of back sheet 30.Shown in the typical case, platform area can be positioned on the outer surface of exposure of the second precursor lateral plate 53 suitably.Hook-and-the another kind of structure of ring fastening system can have the ring material that is fixed on the fastening tab 36, and use the hook material to form platform area 50.Each specified platform area can be the parts that provide separately that are assembled on the suitable side sheet 52 or 53, perhaps can with side sheet monolithic molding.For example, the outer surface of side sheet 53 can be by provide the fabric of exercisable ring material to constitute for fastening system.
In various aspects of the present invention and structure, the hook element material can be called as little hook material-type.Suitable little hook material distributes with title CS200, and can be by the enterprise that has office at Minnesotan St.Paul--the supply of 3M company.Little hook material can have the hook of mushroom " medicated cap " shape, and can form about 1600 hooks hook density per square inch; Hook height in about 0.033-0.097 centimetre of (about 0.013 to 0.038 inch) scope; With the medicated cap width in about 0.025-0.033 centimetre of (about 0.01 to 0.013 inch) scope.Hook is connected with the base film substrate, and medicated cap base film substrate has the Gurley hardness of thickness He about 15mgf of about 0.0076-0.01 centimetre (about 0.003-0.004 inch).
Have another kind of suitable little hook material with title VELCRO CFM29 1058, it can be had the VELCRO U.S.A. company supply of office by the Manchester in the state of New Hampshire.Little hook material can have the shape of angled hook element, and can form every square centimeter on about 264 hooks density of (about 1700 hooks per square inch); The height of hook is in about 0.030-0.063 centimetre of (about 0.012-0.025 inch) scope; And the hook width is in about 0.007-0.022 centimetre of (about 0.003 to 0.009 inch) scope.Hook element and basic unit's substrate co-extrusion, this basic unit's substrate have the thickness of about 0.0076-0.008 centimetre (about 0.003-0.0035 inch), and the hook material elements has the hardness of about 12mgf (about 12Gurley unit).
For purposes of the present invention, determine various hardness numbers according to the moment of flexure that is produced by power, this power is perpendicular to the face of being determined basically by the length and the width of unit under test.The appropriate technology of definite hardness number as described herein is the Gurley hardness test, and being described among TAPPI standard testing T 543 om-94 (bending strength of paper (Gurley type tester)) of this technology proposes.Suitable testing equipment is a Gurley numeral hardness-testing device; The 4171-d type that the Teledyne Gurley of the enterprise production of office is arranged by the Troy in New York.For purposes of the present invention, described Gurley hardness number is consistent with the value that sample produced of " standard " size.Therefore, the suitable hardness that converts the standard size sample to of scale reading of reading from the Gurley hardness-testing device, and be the unit report with milligram power (mgf) as usual.At present, " the Gurley unit " of standard equates with the hardness number of 1mgf, and can be used to report Gurley hardness of equal valuely.
In various aspects of the present invention and structure, ring material can by non-woven, weave or knit goods provides.For example, suitable ring material fabric can be made of the warp tricots of 2 crust, and this warp tricot can be called the #34285 supply with the trade name by the GuilfordMills company of the Greensborough of the North Carolina state, also comprises other knitted fabric.Suitable ring material also can obtain from 3M company, and it is that the nylon of trade mark is weaved ring that the said firm has sold with SCOTCHMATE.3M company also sells few lining ring paper web and the 3M ring banding that has binding agent on the back sheet of fabric.
In particular aspects of the present invention, do not need ring material is limited as discrete platform area sticking patch.For example, successive basically outer fiber layer can replace ring material, and this fibrous layer is whole so that extend on the surf zone of total exposure of the cloth shape outer cover that is used for diaper 10.As a result, therefore cloth shape back sheet 30 can provide effectively " all firm Anywhere " used ring material of mechanical fastening system.
In various structures of the present invention, the engaging force between specific secure component and its specified platform tape member is should be enough big and enough lasting, so that enough fixing of employed goods of wearer between the operating period is provided.
By using any one or a plurality of bindiny mechanism, so that with various other unit architectures of goods of the present invention be supported on together, each secure component in the various structures of the present invention and element can be operably connected with its support substrate.The tightening member of various fastening zones can for example pass through injection molding, coextrusion or similar approach monolithic molding together with relevant substrate layer.The substrate layer mechanical tightening component relevant with it can be formed by substantially the same polymeric material, and do not need tightening member is fixed to discrete step on the substrate layer that separates at first.For example, by bottom and the hook element co-extrusion that will be made by substantially the same polymeric material, independent hook element can form with the hook bottom is whole simultaneously.
Understand easily, the connection between the secure component of substrate layer and connection or other interconnective intensity should be bigger than maximum, force, and this maximum, force is meant that fastening tab 36 releasably is fixed to the mobile required maximum, force of the appointment platform area of goods from it.
Example
Example below proposing is so that more detailed understand the present invention.Example is typical, and does not plan to limit the scope of the invention.
Representative instance of the present invention provides body weight at employed size 3 of 16 to 28 pounds baby or middle size diaper.Diaper has as the structure of Fig. 1 to 1C and shape.
Preceding (second) side sheet 53 longitudinally record 4.5 inches, and it is by 1.0osy (28g/m along laterally recording 11 inches 2) polypropylene spunbond constitute.(first) side, back sheet 52 longitudinally records 5.75 inches along laterally recording 11 inches, and by having 77g/m 2But basic weight and in the horizontal the undergauge of cross directional stretch 20-40%-bonding-laminated product constitute.Required curve forms along the inside edge 64 of back and precursor lateral plate 52 and 53 and 65 mid portion respectively.At four side fixed areas, 40 places, before the deployable district 90 that uses four 0.25 inch width bars of double-faced adhesive tape 3M-927 to be used for absorbing composite members is fixed on and on the sheet of side, back.
Absorb composite members 32 next to the shin and comprise a back sheet 30 of liquid thoroughly basically, this back sheet is 8 inches along laterally recording, and longitudinally is 14 inches, and is made of the polypropylene screen of 0.75 mil thickness.Cellulosic chiffon wrapping paper 74 is overlapping and hold around retaining part 48, and this retains part 48 and is made of the mixture of the super-absorbent polymer (from the FAVOR 880 of Stockhausen) of the wooden paper pulp fine hair of 63% cellulose and 37%.The part that retains that is wrapped is to disperse (debulk) to become 0.2 inch thickness, and is cut into hourglass shape.Part longitudinally records is 12 inches for retaining of being shaped, and has narrow crotch part, and this crotch part is 3.5 inches along laterally recording.Two longitudinal relative ends that retain part are 4 inches along laterally recording approximately.From about foremost 2 inches position of chiffon wrapper, the anterior bonding connection of surge material layer 46 and tissue packaging.Surge layer has the density of basic weight and the 0.024g/cc of 2.5osy, and laterally to record be 3 inches and vertically to record be 6 inches.Give the slight spray adhesive of back sheet, so that the part that retains that back sheet and chiffon paper bag are wrapped up in is connected.About to the inside foremost 0.75 place of the guiding that is arranged on back sheet foremost of chiffon wrapping paper, and slight spray adhesive are so that be connected the acrosome side surface of surge layer 46 with the outer surface of the top flat layer 28 of liquid permeable.The 0.5soy polypropylene spunbond that the top flat layer is handled by 0.3% surfactant constitutes, and is placed on surge layer 46, wrapping paper 74 and retains on the part 48.The top flat layer is adhered to the periphery of various absorption pieces and back sheet with binding agent, so that set up the absorption composite members next to the shin of assembling.
The side zones 80 that absorbs top flat layer in the composite members 32 next to the shin and back sheet is through folding and pleating, so that form z folding pleated 92.Then with the strip of glue of 0.25 width that is positioned at four side fixed areas, 40 places with z folding pleated 92 towards the top flat layer segment be connected with the back outer surface of side sheet with preceding.Therefore, absorb composite members 32 next to the shin and assemble and make isolated precursor lateral plate 53 and side, back sheet 52 interconnection and bridge joints.
Each lower limb flexible member 34 comprises the elastica thigh 98 of two 940dtx that are made of LYCRA XA SPANDEX.The elastica thigh is stretched to 300% percentage elongation, and can adhesively be laminated into the polypropylene spun-bonded bin spare 96 of the 0.4osy with Findley binding agent H2525A.The stretching of lower limb flexible member-to-stop, and ultrasonic wave point is adhered to the lateral edges of back sheet 30.Particularly, flexible member is positioned on the outer surface of back sheet, and is arranged in the folding region of z folding pleated 92.Outside the longitudinal end of each lower limb flexible member 34 is tilted to,, and be connected with back side sheet with preceding so that exceed side zones 80 horizontal expansions that absorb composite members.Therefore, this forms wrinkle pleat element to laterally relative lower limb flexible member 34 at each leg opening place of diaper.
Bonding and the ultrasound wave of the fastening tab of hook (36) binding agent of machinery is adhered in the ear 38 of back side sheet 52 of diaper.Best, at belt side zones 86 places, the end margin 60 of the end margin of vertical terminal of fastening tab and side, back sheet 52 basically in line.
Platform area sticking patch 50 is made of the polymer spun binding textiles of 0.5osy, and it is 60% undergauge, and cuts into that vertically to record be 3 inches and laterally be 11 inches.Spray the platform area sticking patch with binding agent, and connect, so that stack absorbs the leading section 79 of composite members 32 next to the shin along the outer side edges 61 of precursor lateral plate 53.Before the end margin zone that the end connection 44 that is made of sonic bonds will absorb the terminal of composite members is fixed to and on the sheet of side, back.
Described in detail the present invention above, understood under the situation that does not break away from essence of the present invention easily, can carry out various changes and modification the present invention.In by the scope of the present invention that additional claim limited, all such changes and modifications allow.

Claims (23)

1. monoblock type absorbent article, this absorbent article have vertical goods length and horizontal goods width, and described goods comprise:
One absorbs composite members, and this absorption composite members has
First and second vertical relative ends;
Horizontal relative sidepiece; With
The end margin of one first vertical terminal,
Described absorption composite members comprise one basically the impermeable back sheet of liquid, one basically fluid permeable the top flat layer and be interposed in described back sheet and the top flat layer between retain part;
One first side sheet, this side sheet has
One body side surface;
An outer surface;
A leaf length, this length be less than described goods length,
The end margin of the terminal in an outside; With
The end margin of the terminal of a relative inner; With
An extensible connecting portion section, it is in the described first end of described absorption composite members, this deployable connecting portion section is along at least a portion combination of each sidepiece of described absorption composite members, each deployable connecting portion section can stretch out on length at least, and the corresponding bonded side portion that each deployable connecting portion section is configured to absorb composite members is fixed on the described outer surface of the described first side sheet.
2. absorbent article as claimed in claim 1 is characterized in that, at least one of described top flat layer and back sheet has the longitudinal component length less than described goods length.
3. absorbent article as claimed in claim 1 is characterized in that, described top flat layer and back sheet all have the longitudinal component length less than described goods length.
4. absorbent article as claimed in claim 1 is characterized in that, the end margin of the described first outer lateral terminal of the described first side sheet links to each other basically with the end margin of first terminal of described goods.
5. absorbent article as claimed in claim 1 is characterized in that, the mid portion at least at the described medial extremity edge of the described first side sheet is not connected basically with described absorption composite members.
6. absorbent article as claimed in claim 1 is characterized in that, absorb composite members described first vertical terminal end margin inwardly and the end margin of the described outer lateral terminal of the first side sheet spaced apart.
7. absorbent article as claimed in claim 1 is characterized in that, described extensible connecting portion section comprises at least one Z-folded pleat element basically.
8. absorbent article as claimed in claim 1 is characterized in that, at least one Z-folded pleat part basically that described extensible connecting portion section comprises described each sidepiece of absorbing composite members.
9. absorbent article as claimed in claim 1 is characterized in that, described extensible connecting portion section comprises a plurality of little pleats.
10. absorbent article as claimed in claim 1 is characterized in that, described extensible connecting portion section comprises elastomeric material.
11. absorbent article as claimed in claim 1, it is characterized in that, described back sheet comprises elastomeric material, the horizontal relative sidepiece of each of described absorption composite members comprises the corresponding laterally relative sidepiece of described back sheet, and each described deployable connecting portion section comprises the corresponding laterally part of opposite side portion of described back sheet.
12. absorbent article as claimed in claim 1 is characterized in that, under the tension force of the lateral length of every centimetre of deployable connecting portion section of 12gmf, described deployable connecting portion section can provide the transverse extension at least about 1 centimetre.
13. absorbent article as claimed in claim 1, it is characterized in that, along at least a portion of the described first end that absorbs composite members, provide the sealing of the first horizontal expansion end, between the described outer surface of described absorption composite members and the described first side sheet so that barrier liquid passes through.
14. absorbent article as claimed in claim 1 is characterized in that, the described first side sheet comprises elastomeric material, and this elastomeric material can stretch along described horizontal goods width elasticity at least.
15. absorbent article as claimed in claim 1 is characterized in that, the described first side sheet has the longitudinal length at least about 5% described goods length.
16. absorbent article as claimed in claim 1, it is characterized in that, second side sheet that provides separately also is provided for it, this second side sheet is connected with the described the second end that absorbs composite members, the described second side sheet has the leaf length less than described goods length, and described absorption composite members is connected with the outer surface of the described second side sheet.
17. absorbent article as claimed in claim 16 is characterized in that, described second side sheet and the described first side sheet are longitudinally-spaced.
18. absorbent article as claimed in claim 16 is characterized in that, the described second side sheet has the end margin of outer lateral terminal, and the end margin of this outer lateral terminal links to each other basically with second end margin of described goods.
19. absorbent article as claimed in claim 16 is characterized in that, the described second side sheet has the end margin of interior lateral terminal, and mid portion at least of the end margin of lateral terminal is not connected basically with described absorption composite members in this.
20. absorbent article as claimed in claim 16, it is characterized in that, it also comprises a deployable connecting portion section, this deployable connecting portion section at least a portion along each sidepiece that absorbs composite members in the described the second end that absorbs composite members connects, each deployable connecting portion section can outwards be launched at least, and each deployable connecting portion section is configured to absorb the side zones that the correspondence of composite members connects and is fixed on the described outer surface of the described second side sheet.
21. absorbent article as claimed in claim 16 is characterized in that, the described second side sheet has 40% the longitudinal length that is no more than described goods length.
22. absorbent article as claimed in claim 16 is characterized in that, the described second side sheet has 5% the longitudinal length that is at least about described goods length.
23. absorbent article as claimed in claim 16 is characterized in that, under the tension force of the lateral length of every centimetre of deployable connecting portion section of 12gmf, each described deployable connecting portion section can provide the extending transversely at least about 1 centimetre.
CN99808379A 1998-05-07 1999-04-30 A disposable absorbent article having barriers with expandable attachment to an absorbent Pending CN1308516A (en)

Applications Claiming Priority (4)

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US8451598P 1998-05-07 1998-05-07
US60/084,515 1998-05-07
US09/250,470 1999-02-12
US09/250,470 US6132410A (en) 1998-05-07 1999-02-12 Disposable garment having dryness barriers with expandable attachment to an absorbent

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CN1308516A true CN1308516A (en) 2001-08-15

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US (1) US6132410A (en)
EP (1) EP1076542B1 (en)
JP (1) JP4242562B2 (en)
KR (1) KR100609373B1 (en)
CN (1) CN1308516A (en)
AR (1) AR019140A1 (en)
AU (1) AU738127B2 (en)
BR (1) BR9910262A (en)
CO (1) CO5090861A1 (en)
DE (1) DE69925589T2 (en)
HK (1) HK1038872A1 (en)
TW (1) TW452489B (en)
WO (1) WO1999056688A1 (en)

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CN103458845A (en) * 2011-04-04 2013-12-18 金伯利-克拉克环球有限公司 Process for making elastomeric absorbent garments to reduce absorbent bunching, and garment made thereby
CN103458845B (en) * 2011-04-04 2016-02-10 金伯利-克拉克环球有限公司 Manufacture elastic absorbent medicated clothing with the method reducing absorbing component collection and hold together and the medicated clothing manufactured thus
CN106572929A (en) * 2014-08-28 2017-04-19 金伯利-克拉克环球有限公司 Extendable absorbent article
CN107920934A (en) * 2015-09-29 2018-04-17 金伯利-克拉克环球有限公司 The absorbent article of the waist leakage prevention member of the selectivity positioning improved with waist seal
CN107920934B (en) * 2015-09-29 2019-11-29 金伯利-克拉克环球有限公司 Absorbent article with the waist leakage prevention member that the selectivity that waist seal is improved positions
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KR20010043341A (en) 2001-05-25
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JP4242562B2 (en) 2009-03-25
JP2002513637A (en) 2002-05-14
DE69925589D1 (en) 2005-07-07
US6132410A (en) 2000-10-17
CO5090861A1 (en) 2001-10-30
DE69925589T2 (en) 2006-04-27
HK1038872A1 (en) 2002-04-04
AR019140A1 (en) 2001-12-26
AU3873899A (en) 1999-11-23
TW452489B (en) 2001-09-01
WO1999056688A1 (en) 1999-11-11
AU738127B2 (en) 2001-09-06
BR9910262A (en) 2001-01-02
EP1076542A1 (en) 2001-02-21

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